I tried my Vox Wah in front of both the Thunderbird Supa MkI and the Pigdog SF-1 (same circuit)...as Philip alluded to, sounded a bit weak but still pretty useable with the Thunderbird. A little messier with the Pigdog, but still not awful like a fuzzface or anything.

~Actually I think Art lies in both directions - the broad strokes, big picture but on the other hand the minute examination of the apparently mundane. Seeing the whole world in a grain of sand, that kind of thing~ Peter Hammill